Improvement in jacks for moving tee cross-heads of locomotives



i thereto by means of,keys.

anatema @ma eine.

JOHN s'FUNK, 0F MARYSVILLE, PENNSYLVANIA.

Laim Parent No. 100,300, ,dated March 1, 1370.

IMPROVEMENT IN J'AOKS FOR MOVING 'IJHE CROSS-HEADS OI'Y LOCOMO'IVES.

'.l'he Schedule refen'ed to these Letters Patent aud naaking part of the same To all nfhm it may concern: i

Pe it known that I, J ORN S. FUNK, of Marysville, in the county of I erry, and State lof Pennsylvania, have invented anew and improved Jack formoving` the Cross-Heads of Steam-Engines; and I do hereby declare that the following is a full, clear, and exact, description oi' the same, reference being had to the ac- 1t consists of a. ratchet-bar, A, to each end of which 1 is securely attached, at right angles to the bar, a clamp- .ing-socket, a., whose oice itis to inclosev the guideways in which the cross-head moves, and be fastened y B is thehook intended to be placed'npon the crossllead. Y

C is a leven-forked at one end so as toy embrace the ratchet-bar between the ends, to the branclnfs, c c, of which lever the hook B isjointed.

D ,is a pawl, pivo'ted atone end to the level' C at the junction ofthe branches c of the'latter, and resting at the other end on the serrated side of the ratchetbar, against which the paw] ,is continually pressed by a spring, d.

As is evident, it is by moving lthe lever C'backand forth that the cross-head is drawn along in the guideways, sncll 4drawing being eiected while the lever is being raised toward the perpendicular, and the lever gaining distance along the ratchet every time is is lowered: The cross-head may be'moved-at every stroke from one sixty-fourth of an' inch up to two To the above specification of my invention I have signed my hand this 18th day of January, 1870,

JOHN S. FUNK;

fitnesses GEO. H. VAN'rInUno, GHAs. M. DICKINsos. 

